“He feels it when he gets to a certain point in his stretching,” Mattingly said. “It seems like it [isn’t serious], because he isn’t feeling any pain, and he played last night. But these guys know their bodies pretty good, and with the knee, we want to be a little careful. We just want to find out what it is.”

The Dodgers hope to have the results of the MRI before the end of the day.

Loney batted .267/.329/.395 with 10 home runs and 88 RBI last season. He finished with a career-low .723 OPS, well below the major league average (.800) for first basemen.